feat(voice): add CLI record beep toggle

[helix4u]

What does this PR do?

Adds a voice.beep_enabled config toggle for CLI voice mode so users can disable the record start/stop beeps without turning voice mode off entirely.

This keeps the existing behavior by default, but removes an annoying hardcoded audio cue for users who use /voice heavily or in quieter/shared environments.

Related Issue

Fixes #

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 🔒 Security fix
• 📝 Documentation update
• ✅ Tests (adding or improving test coverage)
• ♻️ Refactor (no behavior change)
• 🎯 New skill (bundled or hub)

Changes Made

• Added voice.beep_enabled to DEFAULT_CONFIG and bumped _config_version in hermes_cli/config.py
• Added HermesCLI._voice_beeps_enabled() and gated both CLI voice beeps in cli.py
• Added regression coverage in tests/tools/test_voice_cli_integration.py
• Updated voice config examples and docs in:
  • website/docs/user-guide/features/voice-mode.md
  • website/docs/user-guide/configuration.md
  • website/docs/guides/use-voice-mode-with-hermes.md

How to Test

1. Enable CLI voice mode and verify the default behavior still plays beeps on record start/stop.
2. Set voice.beep_enabled: false in ~/.hermes/config.yaml, restart the CLI, and verify /voice recording starts and stops silently.
3. Run source venv/bin/activate && scripts/run_tests.sh tests/tools/test_voice_cli_integration.py tests/tools/test_voice_mode.py and confirm the focused voice suite passes.

Checklist

Code

• I've read the Contributing Guide
• My commit messages follow Conventional Commits (fix(scope):, feat(scope):, etc.)
• I searched for existing PRs to make sure this isn't a duplicate
• My PR contains only changes related to this fix/feature (no unrelated commits)
• I've run pytest tests/ -q and all tests pass
• I've added tests for my changes (required for bug fixes, strongly encouraged for features)
• I've tested on my platform: Ubuntu 24.04

Documentation & Housekeeping

• I've updated relevant documentation (README, docs/, docstrings) — or N/A
• I've updated cli-config.yaml.example if I added/changed config keys — or N/A
• I've updated CONTRIBUTING.md or AGENTS.md if I changed architecture or workflows — or N/A
• I've considered cross-platform impact (Windows, macOS) per the compatibility guide — or N/A
• I've updated tool descriptions/schemas if I changed tool behavior — or N/A

Screenshots / Logs

Focused test run:

source venv/bin/activate && scripts/run_tests.sh tests/tools/test_voice_cli_integration.py tests/tools/test_voice_mode.py
143 passed in 8.01s

Full suite run:

source venv/bin/activate && scripts/run_tests.sh
28 failed, 13770 passed, 39 skipped, 206 warnings in 297.70s (0:04:57)

Current unrelated full-suite failures observed during the full run:

tests/gateway/test_approve_deny_commands.py::TestBlockingApprovalE2E::test_blocking_approval_approve_once
tests/gateway/test_approve_deny_commands.py::TestBlockingApprovalE2E::test_blocking_approval_deny
tests/gateway/test_dingtalk.py::TestCardLifecycle::test_final_reply_finalizes_card
tests/gateway/test_dingtalk.py::TestCardLifecycle::test_intermediate_send_stays_streaming
tests/gateway/test_dingtalk.py::TestCardLifecycle::test_done_fires_only_when_reply_to_is_set
tests/gateway/test_dingtalk.py::TestCardLifecycle::test_edit_message_finalize_fires_done
tests/gateway/test_dingtalk.py::TestCardLifecycle::test_edit_message_finalize_false_tracks_sibling
tests/gateway/test_dingtalk.py::TestCardLifecycle::test_next_send_auto_closes_sibling_streaming_cards
tests/gateway/test_dingtalk.py::TestDingTalkAdapterAICards::test_send_uses_ai_card_if_configured
tests/gateway/test_discord_bot_filter.py::TestDiscordBotFilter::test_default_is_none
tests/agent/test_insights.py::TestGatewayFormatting::test_gateway_format_hides_cost
tests/gateway/test_api_server.py::TestAdapterInit::test_default_config
tests/hermes_cli/test_config.py::TestCustomProviderCompatibility::test_v11_upgrade_moves_custom_providers_into_providers
tests/hermes_cli/test_config.py::TestCustomProviderCompatibility::test_compatible_custom_providers_prefers_api_then_url_then_base_url
tests/hermes_cli/test_config.py::TestInterimAssistantMessageConfig::test_migrate_to_v15_adds_interim_assistant_message_gate
tests/hermes_cli/test_config.py::TestDiscordChannelPromptsConfig::test_migrate_adds_discord_channel_prompts_default
tests/hermes_cli/test_api_key_providers.py::TestHuggingFaceModels::test_model_metadata_has_context_lengths
tests/hermes_cli/test_backup.py::TestProfileRestoration::test_import_creates_profile_wrappers
tests/hermes_cli/test_provider_config_validation.py::TestNormalizeCustomProviderEntry::test_unknown_keys_logged
tests/hermes_cli/test_provider_config_validation.py::TestNormalizeCustomProviderEntry::test_camel_case_warning_logged
tests/hermes_cli/test_gemini_provider.py::TestGeminiModelCatalog::test_provider_models_exist
tests/gateway/test_internal_event_bypass_pairing.py::test_non_internal_event_without_user_triggers_pairing
tests/test_transform_tool_result_hook.py::test_transform_tool_result_integration_with_real_plugin
tests/tools/test_browser_camofox_state.py::TestCamofoxConfigDefaults::test_config_version_matches_current_schema
tests/run_agent/test_interrupt_propagation.py::TestInterruptPropagationToChild::test_interrupt_during_child_api_call_detected
tests/tools/test_registry.py::TestBuiltinDiscovery::test_matches_previous_manual_builtin_tool_set
tests/tools/test_terminal_output_transform_hook.py::test_terminal_output_transform_integration_with_real_plugin
tests/tools/test_tirith_security.py::TestDiskFailureMarker::test_cosign_missing_marker_clears_when_cosign_appears